Liquid-dispensing apparatus.



J. c. MARTIN & N. 0, BUCKMAN.

LIQUID DISPENSING APPARATUS.

APPLICATION FILED ms. 15. 1915.

1;]. 88,468. lntuntm'l June 27, 1916.

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JOHN C. MARTIN AND NORRIS C. BUCKMAN, SPOKANE, WASHINGTON. Y

LIQUID-DISPENSING APPARATUS.

Specificatioh of Letters Patent. Patigntgd June 2'7, 1916,

I Application filed February 15, 1915. Serial No. 8,288.

15! The invention relates more particularly to an apparatus of. this character which is particularly adapted to dispense liquid and has to do more particularly with an apparatus for dispensing gasolene to supply automobiles, although the invention is not in any wa limited to this particular utility.

ne of the objects of this invention is to provide a supply tank into which the quan-- tity of liquid to be dispensed is supplied, the

{tank being provided with improved means for automatically shutting oil such supply when the latter has reached a predetermined volume.

Other features and objects of the inven- 39 tion will be more fully described connection with the accompanying drawings and will be more particularly pointed out in and by the appended claim.

In the drawingsz-Figure 1 is a view in :35 side elevation illustrative of one form of our invention. Fig. 2 is a view looking toward the right of Fig; 1. Fig. 3 is a vertical sectional view of the upper portion of the apparatus shown in Fig. 1. Fig. 4 is an enlarged sectional view of valve-and coincontrolled mechanism similar to that shown in Fig. 3, with the parts in a different position. Fig. 5 is a sectional view similar to Fig. 3, showing the up er portion of the latter, with a float in a di erent position- Fig. 6 isa sectional view on line 6-6 of Fig. 3. Fig. 7 is a detai plan view of an improvedcoin retainer.

Like characters of reference designate similar parts throughout the difi'erent fig ures of the drawings.

As illustrated, our'invention includes an upright supporting standard 1 inwhich is incorporated any suitable form of pump adapted to be operated by a manual member such as a crank 2. A supply pipe 3 leads'from the pump, it being understood that the latter will be. connected with'the som'ce of supply of gasolene or other liquid to be vended. i

Mounted upon pump standard 1 of brackets 4, is a tank 'structurewhich comprises a, tank 5 and a housing 6. lVithin the housing 6 is ;a valve casing 7 which is connected with supply pipe 3. and also with a dispensing pipe 8. Dispensing pipe by means 8 is equipped'with a flexible hose connec- 1 tion 9 terminating in any suitable form of valve 10. Valve 10 is adapted to be partly inserted in the gasolene tank filling open ing of an'automobile. In alinement with supply pipe 3' is an extension 11 which opens into tank-5. Also, dispensing pipe 8 is in alinement with an extension 12 which opens into tank 5. Within valve casing 7 are two valve closures 13 and 14 which are connected by a rod 15 in such a manner that they will always maintain one of the pipe openings into the tank closed, while the other pipe opening is open, whenever said valves are in either of their extreme positions. As shown in Fig. 3, the valves are in an ingress closing and an egress opening position, whereas in Fig. 4., they are in an ingress opening and an egress closing position. The valve closures are normallyheld in the position shown in Fig. 3 by an expansively' acting spring 16 which is interposed between closure 13 and cap 17. Rod

i 15. extends through a suitable packing gland 18 and is connected with a portion of the coin controlled mechanism hereinafter referred to. Fixed on the rod 15, preferably between closures 13 and 14, is one member ofa trip device which may be in the form of a sleeve 19 having a cammed upper 'portion 20. Projecting through the valve casing 7 is the other member of the tri device which is in the form of i. stem 21. tem 21 is pivoted at 22 to a lever 23, the latter being pivoted at 24 to .a part of the valve casing 7. A connecting rod 25 is pivoted to lever 23 and extends upwardly through a centrally disposed pipe 26 projecting upwardly fromthe bottom wall of tank 5. A

tubular member 27 is slidably mounted on guide 26 and extends above the latter and on theupper end of the same a collar 28 is adjustably mounted on the connecting rod 25, by means of a set screw 29. The function of collar 28 is not only to limit downward. movement of rod 25, beyond a predetermined extent, but also to form an abutment for the upper end of guide 27 when the latter is elevated so as to lift the stem 21 out of engagement with sleeve 19, as will presently appear. When hub 19 is released from the set position shown inl ig. 4, thespring 16 will be free to act on the valve closures 13 and 14 to shift the latter into the position shown in Fig. 3.

/Vithin tank 5 is a float 30 which is cen-v projects from the cover and is apertured to receive a fastening means in the form of a rod 36, having a head 37. The lower end of rod 36 extends through apertured lugs 38, projecting from the housing 6. ll he housing 6 is provided with a door 39 which is hinged at 40 to swing about an axis parallel with respect to the axis of the tank and at right angles to the axis of hinge 34. Upon the door 39 isan apertured lug 41 through which the rod 36 is adapted to extend to'lock both the cover and the door in a closed position. The rod 36 may terminate in an eye 42 which may be provided with any form of locking device.

In the housing 6 is a coin chute 43, su1tably mounted in a bracket 44. Beneath the coin chute 43 is a slidably' mounted coin receiver 45 having a coin slot 46, for receiving a coin from chute 43. The receiver 45 reciprocates on guides 47 which also tunetion to hold a coin of a predetermined denomination from falling out of the receiver 45. Howeve'ryit will be seen by reference .to Fig. 6 that if the inserted coin were of a too low denomination, it would fall through the receiver. An abutment 48 serves to limit movement of receiver 45 to the right 4 of Fig. 3 to bring the slot into registry with chute 43. Receiver 45is fixedly connected with valve rod 15 as indicated by the screw threads 50. The receiver 45 is provided with a bore 51 whichintersects slot 4-9 so as to permit passage therethrough of a plunger 52 when a coin is not present in slot 49. When a coin is lodged in slot 49 then the plunger 52 will abut against the coin and force the receiver 45 from the position shown in Fig. 3 to the position shown in Fig. 4. This last position is the one which the valves occupy when liquid is free to be supplied to tank 5.

Plunger 52 1s slidable through the end wall of housing 6 and also through abutment 48 and we provide a spring 53 for normally forcing the plunger 52 into the retracted position shown in Fig. 3. A collar 54 forms an abutment between the spring and the plunger 52. A coin box 55 opens into the housing 6 at 56.

In order to support coins of the proper size in the receiver 45, we incorporatethe guides 47 in a slide 57. Slide 57 has flanges 58in which elongated slots 59 are formed.

-This guide structure, which is also a coin retainer, is slidably mounted on the bottom wall of housing 6 by means such as rivets 60. An opening 61 serves to receive a projection 62 on collar 54, as will be seen more particularly by reference to Fig. 4.

New assuming the parts to be in the position shown in'Fig. 3, a coin will first be in serted and then the plunger 52 will be forced against the coin to move the parts into the position shown in Fig. 4. This will open ingress to the tank and close egress therefrom. The pump will now be operated to force a supply of liquid into the tank which will elevate float 30 until it coacts against abutment 31 whereupon the trip de vice will beactuated to release valve rod 15. Spring 16 will instantly act to throw the valve closures l3 and 14 into the position shown in lFig. 3 so as to close ingress into the tank and open egress therefrom. The

' valve 10 may beheld closed until the proper filling connection is made with the tank to be filled. Thus it will be seen that by means of our improved invention, the supply is automatically shut off while the pump is in operation when a predetermined amount of liquid has been received in the tank 5, and further, that the tank'5 will simultaneously be opened for delivery of such quantity.

N ow in order to prevent diseharge of the coin from the receiver 45 in the event that J; J

the plunger 53 has not been forced to a final position to the left of Fig. 4, it will be seen that the retaining guides 47 prevent the coin from falling into box 55 when the parts are inthe position shown in Fig. 4. However, when the plungeris released for retraction by spring 53, the projection 62 will force the retainer 57 sufliciently to the right of Fig. 4 to permit the coin to drop.

If desired, a rod 63 may be provided with a spring 64,-abutting against a lug 65 in order to more quickly retract retainer 57 to the-right of Fig. 4. However, we do not consider this feature absolutely essential in all embodiments of the invention.

While we have herein shown :and described -one specific form of our invention, we do not wish to be limited thereto except for such limitations as the claim may import.

We claim In a liquid dispensing apparatus, a tankhaving ingress and egress openings, spring controlled valve mechanism for maintaining one of said openings closed and the other lit open, a fixed vertically disposed circular with said abutment to raise said sleeve and guide in said tank,"trip mechanism 'for said rod to trip said mechanism and actuate said valves including a trip rod extending upvalve to close ingress and open egress to 15 w'ardly through and above said guide, a and from said tank, substantially as de= 5. sleeve freely movable longitudinally on said scribed. I

guide, and extending above the latter, a stop In testimony whereof we affix our signaon said rod engaging the top of saidsleeve tures in presence of two Witnesses. to prevent independent upward movement JOHN'C. MARTIN. of the latter with respect tothe former, an NORRIS 'C. BUCKMAN.

' 10 abutment on said sleeve, and a float freely Witnesses:-

movable upwardly on said sleeve under ac- G. E. TnoMrsoiv, tlon of incoming liquid into engagement I A. OWEN SANDERS. 

